caa a22 4500 378943480 CHVBK 20180305123658.0 cr unu---uuuuu 161128e20040901xx s 000 0 eng 10.1524/zkri.219.9.573.44041 doi (NATIONALLICENCE)gruyter-10.1524/zkri.219.9.573.44041 High-pressure in-situ crystallization, structure and phase transitions in 1,2-dichloroethane [Elektronische Daten] [Maciej Bujak, Armand Budzianowski, Andrzej Katrusiak] The single crystal of 1,2-dichloroethane, C2H4Cl2 was in-situ crystallized in a Merrill-Bassett diamond-anvil cell, and its structure determined at 0.7 GPa and 280 K. The crystals are monoclinic, space group P21/c. The C2H4Cl2 molecules in the s-trans conformation are located at the inversion centers. The —H2C—CH2—ethylene group is disordered in two sites, with equal occupancies, one rotated by 180° to the other about the Cl⋯Cl axis of the molecule. The crystal cohesion forces have been attributed mainly to Cl⋯Cl intermolecular interactions, and their role in the mechanism of the phase transition at 177 K has been analysed. It was found that the order-disorder phase transition in the structure of 1,2-dichloroethane is associated with the breaking of the Cl⋯Cl intermolecular interactions in the disordered phase. The crystal amorphization under non-homogeneous strain and subsequent transition to a new pressure-induced polymorph at 1.5 GPa has been observed. © 2004 Oldenbourg Wissenschaftsverlag GmbH Crystallography nationallicence Inorganic chemistry nationallicence Organic chemistry nationallicence Bujak Maciej aut Budzianowski Armand aut Katrusiak Andrzej aut Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 219/9(2004-09-01), 573-579 2194-4946 219:9<573 2004 219 zkri https://doi.org/10.1524/zkri.219.9.573.44041 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zkri.219.9.573.44041 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bujak Maciej aut NATIONALLICENCE 700 1- Budzianowski Armand aut NATIONALLICENCE 700 1- Katrusiak Andrzej aut NATIONALLICENCE 773 0- Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 219/9(2004-09-01), 573-579 2194-4946 219:9<573 2004 219 zkri CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter